18" Universal Kayak Replacement Blocks/pair

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Product Overview

Assure ultimate protection to your car and kayak with the Riverside 18" Universal Kayak Replacement Blocks/pair from Seattle Sports This set of two blocks cradle your boat for secure car-top carrying. These blocks have non-skid laminate surface and cut out for rack bar-use with Riverside car-top carrier kits. They are made in USA, and are extra tall and slotted to hold kayak.

Block Dimensions 3.75in H x 4.75in D x 17.75in W
Fast_Shipping Normally Ships in 0 to 2 Business Days
Features Benefits
Non-skid laminate surface Eliminates slippage on wet car roof
Compatibility Perfect for cars with or without a roof rack
Availability Sold in bulk singles and packaged pairs
Made in the USA Assures easy-to-use functionality and long lasting value
Additional benefits Extra tall and slotted to hold kayak
madeinusa125.jpg Guaranteed Workmanship and Performance


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  • 4
    Good quality

    Posted by Stacey on Aug 4th 2020

    The first installation of these blocks onto my cross bars was tough but got easier each time I have put them on. The foam did loosen up a little bit to go around the cross bars. I take them off if I am driving with out a kayak but I think I may just strap them down instead so I don’t have to worry about taking them on and off and so I don’t have to worry about them coming off while driving in the freeway. I probably should have ordered the wider set for my kayak but these did the job.